Title of article :
The Hyper-Zagreb Index of Trees and Unicyclic Graphs
Author/Authors :
Rezapour ، Hassan Department of Mathematics - Faculty of Basic Sciences - University of Qom , Nasiri ، Ramin Department of Mathematics - Faculty of Sciences - Imam Hossein Comprehensive University , Mousavi ، ahmad Department of Mathematics and Statistics - University of Maryland
Abstract :
Topological indices are widely used as mathematical tools to analyze different types of graphs emerged in a broad range of applications. The Hyper-Zagreb index (HM) is an important tool because it integrates the first two Zagreb indices. In this paper, we characterize the trees and unicyclic graphs with the first four and first eight greatest HM-value, respectively.
Keywords :
Hyper , Zagreb index , Vertex degree , Unicyclic graphs , Trees
Journal title :
Iranian Journal of Mathematical Sciences and Informatics (IJMSI)
Journal title :
Iranian Journal of Mathematical Sciences and Informatics (IJMSI)
